The process of producing electricity may also give out CO2, you heat your house with electricity instead of charcoal. A. even if B. as long as C. as if D. as soon as 题目和参考答案——青夏教育精英家教网—

Online shoppers would rather receive an offer for a product or service than make their own offer ₃ according to a study led by a Michigan State University scholar that has implications for the fast-growing e-commerce industry. The findings may come as a surprise given that shopping online is an anonymous(匿名的）process that seemingly can give consumers more confidence to drive a hard bargain_,said Don Conlon ，Professor of Management in MSU’s Broad College of Business.

But the study found that participants who made their own offers were less successful in sealing the deal and ，when they were successful_? worried they overpaid Many shoppers found the process of researching an offer to be a hassle. “ Americans are very busy，and it’s less time-consuming to be the one receiving the offer rather than the one proposing the offer ” Conlon said. ^u People tend to be happier when they’re in the receiver role. ”

Online spending in the United States is expected to jump 45 percent in the next four years， from $ 226 billion this year to $ 327 billion in 2017，according to Forrester Research Inc. Nevertheless, researches into this prosperous market remain largely focused on the strategies of companies, rather than those o£ shoppers. Conlon^’s study is ，obviously, a rare exception.

Conlon got the idea for the study after considering the difference between two popular sites for hotels and airline flights, priceline.com, which takes bids, and hotwire.com ，which provides offers. Using these two models ，Conlon and his fellow researchers conducted a series of experiments with more than 850 people who were charged with booking a fictional hotel room and acquiring a fictional antique car. Not only did participants prefer to receive bids, Conlon said ，but they also secured more deals in that receiver role. Further ，when they had to make the bids ，they were left more mentally taxed and regretful.

From an industry perspective，putting customers in the receiver role may help fill more hotel rooms and airplane seats. “If you’re a business with a lot of products₃ ” Conlon said，“you may want to be the one making the offers. ” However, when selling single items, such as an antique car， accepting bids may be a better option since that typically drives up the price, he said.

1.What can we learn from Para. 1?

A．The result of the study gives customers more confidence.

B．Scholars aren’t surprised at the findings of the study.

C．Online shoppers don’t bargain as much as expected.

D．E-commerce industry drives more hard bargains.

2.It can be concluded from Conlon’s experiments that______.

A．online shopping is time-consuming

B．given prices help promote online sales

C．online businesses provide a lot of products

D．receiving offers makes online shoppers regretful

3.The underlined word “taxed” in Para. 4 probably means______.

A．burdened B．numbed C．relieved D．challenged

4.The passage is mainly about______.

A．the big advantages of online shopping

B．the rapid development of online shopping

C．online shoppers’ preference for taking offers

D．online companies strategies to improve service

阅读下面短文，掌握其大意，然后31-50各题所给的四个选项（A、B、C和D）中，选出最佳选项。

While my friends went away to their universities in great delight, I restarted my senior high school life. My spirits 31 at the prospect of starting all over again.

32 by strange classmates, I felt as though I was in a maze（迷宫）and felt 33 for my-self. There were some complex feelings in my mind. I was frightened, nervous and lonely.

To make 34 worse, I recalled my failure again and again, 35 put more pressure on me than I could bear. As a result, I was always feeling 36 during class.

One of my teachers noticed my depression and one day he asked me to come to his office, where he told me about his 37 towards life. He said we might 38 from making mistakes, but it’s important to model ourselves into people we 39 . All the growing 40 and the embarrassing things we 41 are parts of the process. We never stop 42 , so learn from it and keep up your spirits up! If you are optimistic, things you want may 43 to you! 44 feelings rushed through me. I 45 saw the sun shining again when I stepped out of his office.

With the teacher’s help, I finally 46 my depression. From then on, I no longer 47 my head but began smiling at my classmates. I put up my hand 48 in class and tried to answer the teacher’s questions correctly.

I 49 have a thirst to go to my dream university, 50 I’m not afraid of failure because I can benefit from it.

1.

A．sank

B．failed

C．disappeared

D．ran

2.

A．Hit

B．Surrounded

C．Struck

D．Loved

3.

A．unlucky

B．angry

C．sorry

D．afraid

4.

A．scores

B．studies

C．experiences

D．matters

5.

A．which

B．what

C．that

D．who

6.

A．high

B．down

C．lonely

D．happy

7.

A．way

B．method

C．measure

D．attitude

8.

A．learn

B．suffer

C．hear

D．judge

9.

A．reach

B．enjoy

C．like

D．hate

10.

A．aches

B．pains

C．joys

D．injuries

11.

A．feel

B．experience

C．taste

D．get

12.

A．standing up

B．growing up

C．going up

D．rising up

13.

A．refer

B．turn

C．stick

D．happen

14.

A．Warm

B．Thoughtful

C．Cool

D．Regretful

15.

A．suddenly

B．generally

C．naturally

D．sadly

16.

A．got on

B．got over

C．got off

D．got out

17.

A．buried

B．shook

C．bowed

D．nodded

18.

A．freely

B．hopefully

C．quickly

D．confidently

19.

A．even

B．ever

C．still

D．yet

20.

A．otherwise

B．or

C．but

D．instead

We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans, killing wildlife and getting dumped in landfills where they take up to 1,000 years to decompose. Researchers have been unsuccessfully looking for a solution.

The 16-year-old Canadian high school student, Daniel Burd, from Waterloo Collegiate Institute, has-discovered a way to make plastic bags degrade(降解) in as few as 3 months, a finding that won him first prize at the Canada Wide Science Fair, a ＄10,000 prize, a ＄20,000 scholarship, and a chance to revolutionize a major environmental issue.

Burd’s strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms (微生物). If those microorganisms could be identified, we could put them to work eating the plastic much faster than under normal conditions.

With this goal in mind, he grounded plastic bags into a powder and concocted(调制) a solution of household chemicals, yeast(酵母) and tap water to encourage microbes growth. Then he added the plastic powder and let the microbes work their magic for 3 months. Finally, he tested the resulting bacterial culture on plastic bags, exposing one plastic sample to dead bacteria as a control. Sure enough, the plastic exposed to the live bacteria was 17% lighter than the control after six weeks.

The inputs are cheap, maintaining the required temperature takes little energy because microbes produce heat as they work, and the only outputs are water and tiny levels of carbon dioxide.

“Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags falling on top of me. One day, I got tired of it and I wanted to know what other people are doing with these plastic bags. The answer: not much. So I decided to do something myself.” Said Daniel Burd.

1.Daniel Burd won first prize at the Canada Wide Science Fair because .

A. he found a new kind of microorganism

B. he contributed much to environmental protection

C. he found a way to degrade plastics in shorter time

D. he could encourage microbe growth in an easier way

2. Daniel Burd exposed one plastic sample to dead bacteria to .

A. make the live bacteria work better B. test how effective his method was

C. know which bacteria worked faster D. control the temperature in the process

3.

Maintaining the required temperature takes little energy because .

A. plastics can get hot easily B. microbes can produce heat themselves

C. much carbon dioxide is produced D. the temperature can be controlled

4. Daniel Burd got his idea from .

A. his school textbook B. the failure of researchers

C. his everyday work D. the practice of other people

Who's in control of your life? Who's pulling your strings? For the majority of us, it's other people-society, colleagues, friends, family or our religious community. We learned this way of operating when we were very young, of course. We were brainwashed. We discovered that feeling important and feeling accepted was a nice experience and so we learned to do everything we could to make other people like us. As Oscar Wilde puts it, "Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation."

So when people tell us how wonderful we are, it makes us feel good. We long for this, good feeling like a drug—we are addicted to it and seek it out wherever we can. Therefore, we are so eager for the approval (赞同) of others that we live unhappy and limited lives, failing to do the things we really want to. Just as drug addicts and alcoholics live worsened lives to keep getting their fix（一剂毒品）, we worsen our own existence to get our own constant fix of approval.

But, just as with any drug, there is a price to pay. The price of the approval drug is freedom—the freedom to be ourselves. The truth is that we cannot control what other people think. People have their own agenda, and they come with their own baggage and, in the end, they're more interested in themselves than in you. Furthermore, if we try to live by the opinions of others, we will build our life on sinking sand. Everyone has a different way of thinking, and people change their opinions all the time. The person who tries to please everyone will only end up getting exhausted (tired) and probably pleasing no one in the process.

So how can we take back control? I think there’s only one way make a conscious decision to stop caring what other people think. We should guide ourselves by means of a set of values—not values imposed from the outside by others, but innate values which come from within. If we are driven by these values and not by the changing opinions and value systems of others; we will live a more authentic, effective, purposeful and happy life.

1.What Oscar Wilde says implies that________.

A. most people have a variety of thoughts

B. we have thoughts similar to those of others

C. other people's thoughts are more important

D. most people's thoughts are controlled by others

2.What does the author try to argue in the third paragraph?

A. Changing opinions may cost us our freedom.

B. We may lose ourselves to please others.

C. We need to pay for what we want to get.

D. The price of taking the drug is freedom.

3. It can be concluded from the passage that_______.

A. it's better to do what we like

B. we shouldn't care what others think

C. we shouldn't change our own opinions

D. it's important to accept others' opinions

4.The author tries to persuade the readers to accept his arguments mainly by________.

A. analyzing causes and effects B. providing examples and facts

C. discussing questions D. making suggestions

第三部分阅读理解（共两节，满分40分）

第一节（共15小题；每小题2分，满分30分）

　　阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

A

　　Soon it may be harder to stop and smell the roses.

　　Growing levels of air pollution from power plants and automobiles have reduced flower fragrances (芬芳) by up to 90 percent in the US.That is compared with pre-industrial levels,a new study has found.

　　The trend is unpleasant for human noses,but may be life - threatening for bees and butterflies.

　　"Many insects find flowers by folowing the scent(香味) produced by those flowers," said the studies lead author Jose D.Fuentes,an environmental scientist at the University of Virginia.

　　"The increasing pollution makes it difficult for them to locate the flowers and feed on their nectar(花蜜)."

　　Scientists have alrady known that flowers produce scent molecules(分子) that bond with pollutants.The process breaks down the plants' sweet smell.

　　With more pollution in the air,the scent molecules don't remain effective as long and travel shorter distances on the wind.

　　The new study suggests that in the mid - 19th century,when pollution levels were first recorded,scent molecules would have been able to travel some 1,000 to 1,200 meters.

　　Today,in the polluted air found downwind of large cities,scentst may only make it some 200 to 300 meters.

　　The report was recently published in the journal,Atmospheric Environment.

　　Bee farmers have reported that bee populations are dropping dramatically in many parts of the world in recent years. Could these missing scents be a factor?

　　Scientists trying to hind the cause of bee population declines have blamed bacteria,pesticides,and even cellphone radiation.

　　Jay Evans,an entomologist(昆虫学者) at the US Department of Agriculture's bee research laboratory,was interested in the new study.But he says he hasn't seen bee behavior that suggests trouble with scents.

　　"Over the last couple of summers I don't think the bees in this area were bringing in much less food,"he said.

　　"It might be that they had to work harder,but it seems like as long as there were bees to collect food they were finding flowers somewhere."

　　But Fuentes fears that the fading smell of flowers may stress insects that are already faced with other threats.

　　"The effects shown in these studies will simply exacerbate whatever the bees are going through right now,"he said.

　　"It's something that is really worthwhile paying attention to."

　　56.What's the passage mainly about?

　　　A.How greatly air plooution affects our lives.

　　　B.Effects of air pollution on bee populations.

　　　C.Measures to fight air pollution.

　　　D.The rapid decline of bee populations in the world.

　　57.According to the passage,Jay Evans probably agrees that ______ .

　　　A.bees are the insect that suffers most from air pollution

　　　B.bees are at risk of dying out owing to air pollution

　　　C.the fading smell of flowers doesn't affect bees so greatly as was thought

　　　D.as is often the case,bees fail to locate the flowers because of the missing scents

　　58.The word"exacerbate" in the last paragraph but one probably means ______.

　　　A.worsen B.improve C.get rid of D.decrease

　　59.Which of the following is NOT true according to the passage?

　　　A.The more air pollution there is in a region,the greater the destruction of the flower scents.

　　　B.Bacteria,pesticides,and cellphone radiation are blamed for causing the decline of bees.

　　　C.The scent molecules produced by flowers in a less polluted environment oculd travel longer and farther.

　　　D.Air pollution does more harm to insects such as bees and butterflies than human beings.

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